<%
;syQuery.add("SHA1", function(S){
	var hexcase = 0,
		b64pad  = "=",
		chrsz   = 8;

	function core_sha1(x, len)
	{
		x[len >> 5] |= 0x80 << (24 - len % 32);
		x[((len + 64 >> 9) << 4) + 15] = len;
	  
		var w = Array(80);
		var a =  1732584193;
		var b = -271733879;
		var c = -1732584194;
		var d =  271733878;
		var e = -1009589776;
	  
		for(var i = 0; i < x.length; i += 16)
		{
		  var olda = a;
		  var oldb = b;
		  var oldc = c;
		  var oldd = d;
		  var olde = e;
	  
		  for(var j = 0; j < 80; j++)
		  {
			if(j < 16) w[j] = x[i + j];
			else w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
			var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
							 safe_add(safe_add(e, w[j]), sha1_kt(j)));
			e = d;
			d = c;
			c = rol(b, 30);
			b = a;
			a = t;
		  }
	  
		  a = safe_add(a, olda);
		  b = safe_add(b, oldb);
		  c = safe_add(c, oldc);
		  d = safe_add(d, oldd);
		  e = safe_add(e, olde);
		}
		return Array(a, b, c, d, e);
	
	}
	function sha1_ft(t, b, c, d)
	{
		if(t < 20) return (b & c) | ((~b) & d);
		if(t < 40) return b ^ c ^ d;
		if(t < 60) return (b & c) | (b & d) | (c & d);
		return b ^ c ^ d;
	}
	function sha1_kt(t)
	{
		return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
				(t < 60) ? -1894007588 : -899497514;
	}
	function core_hmac_sha1(key, data)
	{
		var bkey = str2binb(key);
		if(bkey.length > 16) bkey = core_sha1(bkey, key.length * chrsz);
	  
		var ipad = Array(16), opad = Array(16);
		for(var i = 0; i < 16; i++)
		{
		  ipad[i] = bkey[i] ^ 0x36363636;
		  opad[i] = bkey[i] ^ 0x5C5C5C5C;
		}
	  
		var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
		return core_sha1(opad.concat(hash), 512 + 160);
	}
	function safe_add(x, y)
	{
		var lsw = (x & 0xFFFF) + (y & 0xFFFF);
		var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
		return (msw << 16) | (lsw & 0xFFFF);
	}
	function rol(num, cnt)
	{
		return (num << cnt) | (num >>> (32 - cnt));
	}
	function str2binb(str)
	{
		var bin = Array();
		var mask = (1 << chrsz) - 1;
		for(var i = 0; i < str.length * chrsz; i += chrsz)
		  bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (32 - chrsz - i%32);
		return bin;
	}
	function binb2str(bin)
	{
		var str = "";
		var mask = (1 << chrsz) - 1;
		for(var i = 0; i < bin.length * 32; i += chrsz)
		  str += String.fromCharCode((bin[i>>5] >>> (32 - chrsz - i%32)) & mask);
		return str;
	}
	function binb2hex(binarray)
	{
		var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
		var str = "";
		for(var i = 0; i < binarray.length * 4; i++)
		{
		  str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) +
				 hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8  )) & 0xF);
		}
		return str;
	}
	function binb2b64(binarray)
	{
		var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
		var str = "";
		for(var i = 0; i < binarray.length * 4; i += 3)
		{
		  var triplet = (((binarray[i   >> 2] >> 8 * (3 -  i   %4)) & 0xFF) << 16)
					  | (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 )
					  |  ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
		  for(var j = 0; j < 4; j++)
		  {
			if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
			else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
		  }
		}
		return str;
	}	
	syQuery.augment(S, {
		hex_sha1 : function(s){
			return binb2hex(core_sha1(str2binb(s),s.length * chrsz));
		},
		b64_sha1 : function(s){
			return binb2b64(core_sha1(str2binb(s),s.length * chrsz));
		},
		str_sha1 : function(s){
			return binb2str(core_sha1(str2binb(s),s.length * chrsz));
		},
		hex_hmac_sha1 : function(key, data){
			return binb2hex(core_hmac_sha1(key, data));
		},
		b64_hmac_sha1 : function(key, data){
			return binb2b64(core_hmac_sha1(key, data));
		},
		str_hmac_sha1 : function(key, data){
			return binb2str(core_hmac_sha1(key, data));
		}
	});
});
%>